Caltest Analytical Laboratory

1885 North Kelly Road
Napa, California 94558

Phone: 707.258.4000
Toll Free 888-258-TEST (8378)
Fax: 707.226.1001

Business Hours: Monday – Friday, 8am – 5pm PCT

The lab is closed in recognition of the following holidays:

  • New Year’s Day
  • President’s Day
  • Memorial Day
  • Independence Day
  • Labor Day
  • Thanksgiving Day
  • Christmas Day

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